1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/reshape_rank7.f90 b/gcc/testsuite/gfortran.dg/reshape_rank7.f90
new file mode 100644
index 000000000..a003de013
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/reshape_rank7.f90
@@ -0,0 +1,27 @@
+! { dg-do run }
+! PR 21075:  Reshape with rank 7 used to segfault.
+program main
+  integer :: a(256), b(2,2,2,2,2,2,2)
+  do i=1,256
+     a(i) = i
+  end do
+  b = reshape(a(1:256:2), shape(b))
+  do i1=1,2
+     do i2=1,2
+        do i3=1,2
+           do i4=1,2
+              do i5=1,2
+                 do i6=1,2
+                    do i7=1,2
+                       if (b(i1,i2,i3,i4,i5,i6,i7) /= &
+                            2*((i1-1)+(i2-1)*2+(i3-1)*4+(i4-1)*8+&
+                            (i5-1)*16+(i6-1)*32+(i7-1)*64)+1) &
+                            call abort
+              end do
+            end do
+          end do
+        end do
+      end do
+    end do
+  end do
+end program main